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ASPL431AZA-R
Public Unreviewedby Ray
ASDsemi Voltage Reference, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.
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markdownASPL431AZA-R
ASDsemi · Voltage Reference · SOT-23
ASPL431AZA-R from ASDsemi, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | REF | input | Reference / feedback input to the internal error amplifier. Compared against the internal 2.5 V bandgap reference to regulate the cathode voltage. Typical reference current 0.3 uA (0.6 uA max); absolute maximum input current 10 mA. |
| 2 | CATHODE | passive | Cathode (K) terminal of the shunt regulator. Sinks the regulated current to the anode when the REF voltage exceeds VREF (2.5 V). Recommended operating cathode voltage VREF to 36 V; sink current 0.2 mA to 100 mA; absolute maximum 40 V and +/-100..150 mA. |
| 3 | ANODE | passive | Anode (A) terminal of the shunt regulator; the return / ground-side terminal of the internal shunt path. Typically tied to circuit ground in a shunt-regulator configuration. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ASDsemi |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
ASPL431AZA-RASPL431AZA-RN
CAD (KiCad official)
- Symbol:
ASPL431AZA-R - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ASDsemi datasheet (13 pp, sha256
fac3b148060f40c4, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).